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The compound 'leaf alcohol' is partly responsible for the smell of new-mown grass - CIE - A-Level Chemistry - Question 22 - 2013 - Paper 1
Question 22
The compound 'leaf alcohol' is partly responsible for the smell of new-mown grass. CH3CH2=CHCH2CH2OH leaf alcohol What will be formed when 'leaf alcohol' is oxidi... show full transcript
Worked Solution & Example Answer:The compound 'leaf alcohol' is partly responsible for the smell of new-mown grass - CIE - A-Level Chemistry - Question 22 - 2013 - Paper 1
Step 1
What will be formed when 'leaf alcohol' is oxidised using an excess of hot, acidified K2Cr2O7 (aq)?
Answer
When 'leaf alcohol' (CH3CH2=CHCH2CH2OH) is oxidized using an excess of hot, acidified K2Cr2O7, the primary alcohol group undergoes oxidation. In this reaction, the alcohol is converted into a carboxylic acid while the alkene remains unchanged.
During oxidation, the 'leaf alcohol' will form:
- A carboxylic acid from the primary alcohol group, which will yield CH3CH2CH=CHCO2H.
Thus, the correct answer is (C) CH3CH=CHCO2H.